Isumi in April
6.4out of 10
Possible, with caveats
Mild: highs around 16°C. Frequent rain: about 12 rainy days.
16°CAvg high
13°CAvg low
12Rainy days (126 mm)
12:54 hDaylight
05:12Sunrise · 18:05 Sunset
Why this score
- Mild: highs around 16°C
- Frequent rain: about 12 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in April is fairly consistent from year to year (2.8 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 10°C | 6°C | 109 mm | 10 | – | – | 5.7 |
| February | 10°C | 6°C | 106 mm | 12 | – | – | 5.6 |
| March | 13°C | 9°C | 156 mm | 14 | – | – | 5.3 |
| April | 16°C | 13°C | 126 mm | 12 | – | – | 6.4 |
| May | 20°C | 17°C | 138 mm | 11 | – | – | 7.0 |
| June | 23°C | 20°C | 191 mm | 14 | – | – | 6.7 |
| July | 26°C | 24°C | 130 mm | 11 | – | – | 7.3 |
| August | 28°C | 25°C | 101 mm | 11 | – | – | 7.5 |
| September | 25°C | 23°C | 194 mm | 15 | – | – | 6.6 |
| October | 21°C | 19°C | 234 mm | 15 | – | – | 6.3 |
| November | 17°C | 14°C | 147 mm | 14 | – | – | 6.1 |
| December | 13°C | 9°C | 104 mm | 12 | – | – | 5.9 |
Frequently asked questions
How hot is Isumi in April?
Daytime highs average 16°C and nights about 13°C.
When is the best time to visit Isumi?
The best months are August, July, May.